20681637 is an odd 8-digits composite number following 20681636
and preceding 20681638 . In scientific notation, it is written as 2.0681637 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13787756 positive integers (up to 20681637) that are relatively prime to 20681637.
20681637 has 4 divisors, whose sum is 27575520
The reverse of 20681637 is 73618602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred eighty-one thousand six hundred thirty-seven
Scientific notation
2.0681637 × 10^7
Engineering notation
2.0681637 × 10^6
Prime Factorization
3 × 6893879
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20681637
Product of the distinct prime numbers
The prime factorization of 20681637 is 3 × 6893879.
Since it has a total of 2 prime factors.
6 , 1 , 62 , 47 , 904 , 979 , 285 , 3872 , 61614 , 38454 , 968521 , 242017 , 4013711 , 2139839 , 823575 , 21241146 , 10255904 , 898060562 , 8918940187 , 3086187201
n×2
41363274
n×3
62044911
n×4
82726548
n×5
103408185
n÷2
10340818.5
n÷3
6893879
n÷3
5170409.25
n÷5
4136327.4
n2
427730108999769
n3
8.8461588483037E+21
n4
1.8295304614495E+29
n5
3.7837684884142E+36
2 √n
4547.7067847433
3 √n
274.49112283461
4 √n
67.436687231382
5 √n
29.04804991914
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681636
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681637 can be divided by 4 positive divisors.
The sum of these divisors (counting 20681637) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111001001110100101
3
Ternary
1102220201212120
4
Quaternary
1032321032211
5
Quinary
20243303022
6
Senary
2015140153
8
Octal
116711645
10
Decimal
20681637
12
Duodecimal
6b14659
16
Hexadecimal
13b93a5
20
Vigesimal
69541h
36
Base36
cba1x
md5
c0fdc99fed945de7929eff09c5b13d15
sha1
37db4c63f80037381151c6b5edc3aaff744b168d
sha256
7100fd9847c8608b8b7c70db59d0a5b7168f65429b0c27cc601590dfb46b2c9e
sha512
9892b8da3a9883e5e18a38629e7cf87851f583ae1960b8a5f7dd64b7a8b9cfbf37422ccf75293f26a557711dca7271542ba8532159b0e84c106e3d23d8576ff9
ripemd-160
29aaeb0133f6254d4a37e3ff4cb4486558e509ec
Diameter
41363274
Circumference
129946557.72682
Area
1.3437537681528E+15
Volume
3.7054703533759E+22
Surface area
5.3750150726113E+15
Circumference
129946557.72682
Perimeter
82726548
Area
427730108999769
Diagonal
29248251.537477
Surface area
2566380653998614
Volume
8.8461588483037E+21
Space diagonal
35821646.067696
Perimeter
62044911
Area
1.8521257017864E+14
Altitude
17910823.033848
Surface area
1.8521257017864E+14
Volume
1.0425298181815E+21
Height
9749417.1791591